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Question
(1). If x% of 75 = 9, then the value of x = ?
(2). If 60:48: : 35 : x , then the value of x = ?
Solution
For, first question.
➠ x% of 75 = 9.
➠ (x × 75)/100 = 9
➠ x = ( 9 × 100 )/75
divided by 25 of 100 and 75
➠x = (9 × 4)/3
divided by 3 of 9 and 3 .
➠ x = 3 × 4
➠ x = 12. [ Ans]
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For, second question.
➠ 60 : 48: : 35 : x
➠ 60/48 = 35 / x
cross multiplication ,
➠ 60x = 48 × 35.
➠ x = (48 × 35 )/60
Divided by 12 of 48 and 60
➠ x = (4 × 35)/5
Divided by 5 of 35 and 5
➠ x = 4 × 7
➠ x = 28 [ Ans].
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